Air conditioning apparatus



- 25, 1936. M 5 TORSQN 2,032,237

AIR CONDI TIONING- APPARATUS Original Filed May 2, 1933 2 Sheets-Sheet l INVENTOR. MHRTIN 75Rso- M. G. TORSON AIR CONDITIONING APPARATUS Feb. 25, 1936. 2,032,237

Original Filed Ma 2,"193s 2 Sheets-Sheet 2 Fig.5 5 Fig.4!

INVENTOR. MHRTIN G. 75Rso- Patented Feb. 25, 1936 UNITED STATES PATENT OFFICE Application May 2, 1933, Serial No. 668,973 Renewed September 17, 1934 1 Claims. (01. 251-8) This invention relates to improvements in heating, c'ooling and humidifying apparatus.

means for cooling and dehumidifying a building.

' A further object of the invention is to provide novel means for heating and cooling a build-- ing and for simultaneously humidifying and dehumidifying the air in a building.

An additional object of the invention is to provide novel control means for operating air conditioning apparatus.

Another object of the invention is to provide a novel heat exchange apparatus for use in the 7 rooms of a dwelling.

Other objects and the advantages of this invention will be apparent from the following description taken in connection with the accompanying drawings wherein:

Fig. 1 is a fragmentary sectional elevation o a building showing an operative installation of my improved heating, cooling and humidifying apparatus;

Fig. 21s a side elevation of the humidity controlling device;

Fig. 3 is an enlarged sectional view of an air intake device used in combination with my system;

Fig. 4 is a front elevation of a radiation or heat enchange device used in combination with my system with portions thereof broken away;

Fig. 5' is a section taken on line 55 of Fig. 4, and

Fig. 6 is a diagrammatic view showing the wiring of my system.

Referring to the drawings by reference characters I have indicated a building generally at i which is shown as including a basement section 12 and a dwelling portion l3. In the basement I provide a steam or hot water heater M which is shown as an oil heater and including a blower l5 which is operated by an electric motor l8. Extending from the heater I4 I have shown the usual feed pipe line H which extends to various portions of the building and a return pipe line it! which returns the steam or hot water to the heater M.

In the pipe ii adjacent its exit from the heater I provide a three way valve !9 and adjacent the entrance of the return pipe 18 into the heater the return pipe has a three way valve 20 interposed therein.

In various portions of the building I provide radiation devices such as indicated at 2| in Fig. 1 and shown in detail in Figs. 4 and 5. As shown each radiation device 2| includes a housing 22 which is preferably positioned in a recess provided for the purpose in the wall of the building. The housing 22 is shown as mounted on a base 23 and includes an open front which is pref- 10 erably closed by a closure member 24 having a screened opening 25 therein; Mounted on the base 23 within the housing 22 I provide a radiator 26 which may be of any standard type including an inlet pipe 21 and an outlet pipe 28. The inlet pipe 21 preferably has a control valve 29 interposed therein.

As shown in Fig. 1 the radiator inlet pipe 21 communicates with the feedpipe l1 and the-radiator outlet pipe 28 communicates with the return pipe l8.

In the housing 22 at the rear of the radiator 26 I provide an air chamber 30 which is formed by a partition 3| having an opening 3| therethrough of approximately the same size as that of the radiation portion of the radiator.

Mounted in the housing 22 to the front of the radiator I provide a shutter device 32 which may be of any standard type including pivoted horizontal fin members 33 which are actuated by an op- 30 erating handle 34.

Positioned in an aperture 35 in the floor of the building I provide an air intake member indicated generally at 36 and shown in detail in Fig.

3. As shown the device 38 includes a housing 31 35 having an open top which is closedby a grilled member 38 through which air is adapted to pass into the housing 31. The housing 31 further includes an outlet conduit 39. In the basement of the building I provide an air conditioning device 40, a'blower device 4| and a refrigerating device 42.

As shown the air conditioning device 40 comprises a housing 43 having therein an air cleaning chamber 44, an air humidifying chamber 45 which may include a humidifier of the water spray type and an air dehumidifying chamber 45 which may contain a .de-humidifier of the type wherein moisture is condensed on cooling coils. At one side thereof the device 40 includes a passageway 1 communicating at its upper end with the cleaning chamber 44 and at its lower end with the dehumidifying chamber 46. The humidifying chamber 45'includes an entrance passageway 43 which communicates with the passageway intermediate the length thereof. Adjacent the upper end of the passageway 41 I provide a valve member 48 which when open as shown in Fig. 1 allows free passage from the cleaning chamber 44 into the passageway 41 and when closed restricts passage from the chamber 44 into the pas-' sageway 41. The valve member 48 is mounted" on a pivoted shaft 58 which extends out through one side of the housing 43 where an operating arm 5| is secured thereto (see Fig. 2).

Adjacent the entrance passageway 48 of the humidifying chamber 45 I provide a valve member 52 which when it is in a closed position as v shown in Fig. 1 restricts passage through the passageway 41 and directs air through the entrance passageway 48 of the humidifying chamber 45,

When the valve member, 52 is open it allows free passage through the passageway 41 and restricts passage through the entrance passageway 48 of the humidifying chamber 45. The valve member 52 ismounted on a pivoted shaft 53 which extends through one side of the housing 43 where an operating arm 54 is secured thereto (see Fi 2).

At the side of the device 48 opposite the passageway 41 the device 48 includes a passageway 55 which at upper end communicates with the cleaning chamber 44 and at its lower end communicates with an exit conduit 56.

Adjacent the upper end of the passageway 55 I provide a valve member 51 which when closed as shown in Fig. 1 restricts passage from the; cleaning chamber 44 into the passageway and when open allows free passage from the. chamber 44 into the passageway 55..

The valve 51 is mounted on a pivoted shaft 58 which extends through one side of the housing where an operating arm 58 is secured thereto (see Fig. 2)

The dehumidifying chamber 46 inciudes an outlet passageway 68 which communicates with the passageway55. Passage through the passageway 68'is shown as controlled by a movable shutter device 6| which includes an operating rod 62 which extends through one side of the housing where it is .slackly connected to a pivoted operating arm 63 (see Fig. 2) o The dehumidifying chamber 46 includes an out let passageway 64 which communicates with the thereof into the passageway 55. The valve member 65 is mounted on a pivoted shaft which extends through one side of the housing 43 wherean operating arm 61 is secured thereto (see Fig. 2)

The operating arm 5| of the valve member 48 and the operating arm 58 of the valve member 51 areconnected by a bar 68. As shown Fig.

6, the bar 68 passes through a pair of soienoid coils 68 and 18 and' includes'solenoid core portions 1| and 12. Carried by the bar 68 I provide an arm which includes contact bar portion 13 and 14. The contact bar 13 is adapted to bridge a pair of contact tracks 15 and 16 and the contact ;bar 14 is adapted to bridges, pair of contact tracks 11 and 18.

are connected by a bar 1%. As shown in Fig. 6

:the bar 18 like the bar 68 passes through a pair of solenoid coils 88 and 8| and includes soienoid core portions 82 and 83. Carried by the bar 18 I provide an arm which includes a pair of contact bar portions 84 and 85. .The contact bar 84 is adapted to bridge a pair of contact tracks 88 and 5 81 and the, contact bar is adapted to bridge a pair of contact tracks 88 and 88. The operating arm 68 of the shutter device 6I is slackly connected to a bar 88 which like the bars 68 and 18 passes through apair of solenoid 10 coils 8| and 82 and includes solenoid core portions 93'and 84. Carried by the bar 88 I provide an arm which includes a pair of contact bar p01'- 7 tions 84 and 85. The contact bar 84 is adapted to bridge a pair of contact tracks 86 and 81 and 15 the contact bar 85 is adapted to bridge a pair of contact tracks 88 and 88.

The operating arm 58 is adapted to be retained in the positiontc which it is moved by a past center spring I88 and the operating arm 54 isgo adapted be retained in a position to which it is movedby a similar spring III and the operating arm 68 is adapted to be retained. in aposition to which it is moved by ,a similar spring I82 (see Fig.2). p

The blower device 4| includes a housing I88 having an .outlet !84. The conduit 56 from the device 48 communicates with the interior of the housing I88 adjacent the lower end thereof. Positioned in the housing I88 intermediate the con- 0 duit 56 and the outlet I841 provide a: fan I88 which is mounted on a shaft I81 connected to the armature shaft I88 of an electric motor 188.. The fan I86 is adapted to draw air from the conduit.

56 and discharge it out through the outlet I84 5 into an air conduit 8 which'conveys theain to different portions of the building.-

The radiator device 25 includes an inlet conduit I I2 which communicates withthe air conduit H8 atone end and opens: into the'air chamber 40' 38 at the opposite end. The passageway from the inlet conduit II2 into the airchamber 88 is controlled by a pivoted valve member II8 which includes an operating rod I I4.

The outlet conduit 88 of the air intake device 45 36 communicates with an air return conduit 5- which communicates with the air cleaning chamber 44 ot the air conditioning device 48.

Thus when the motor I88 is operating the fan I86 draws air from the aif return conduit 6 into the conditioning device 48 then therefrom through the conduit 56 into the housing I84 and then discharges it therefrom into the air conduit i|8 from whence it passes through the conduit I I2 into the air chamber 88 of the device 2| and thence through the opening 8| and past the ra-- diator 26, through the shutter device 88 andv out through the screened opening 25 into the room.

The refrigerating device 42 may be of any desired type and forms no part of my invention. 60 As shown the device 42 includes a housing 8 in which a rotary compressor H1 driven by an electric motor 8 is positioned. Aiso, pofltioned in a portion of the housing I prot'lde a condenser H8. The outlet'end of the compressor -II1 is'55 connected by a delivery conduit I22 to the condenser II8 which is in turn connected to the three-way valve I8, by a conduit'l2l and the three-way valve 28 is connected by a return conduit to the inlet end of the compressor II].

The three-way valve I8 includes an operating arm I23 and the three-way valve 28 include's'an operating arm 24. The operating arms I28 and I 24 are adapted to be retained in a position'to which they have been moved by PM center 1 tering the chamber 30 may springs I 25. The operating arm I23 01 the valve I9 and the operating arm I24 of the valve 20 are connected by a bar I26. As shown in Fig. 6 the bar I26 passes through a pair of solenoid coils I21 and I28. and includes solenoid core portions I29 and I30. Carried by the bar I261 provide an arm which includes a pair of spaced contact bar portions I3I and I32. is adapted to bridge a pair of contact tracks I33 and I34 and the contact bar I32 is adapted to bridge a pair of contact tracks I and I36.

When the three-way valves I9 and 20 are open as shown in Fig. 1, the valve I9 restricts communication between the pipe I 20 .and the pipe I1 and between the pipe I2I and the pipe I8 and directs steam or hot water from the heater I4 into the feed pipe I1 from whence it passes through the pipe 21 into the radiator 26 and thence therefrom through the outlet pipe 28 into the return pipe I8 from which it is directed by the valve 20 into the heater I4. When the valves I9 and 20 are closed they restrict communication between the heater and the pipes I1 and I8 and allow communication between the pipes I1 and I8 and the pipes I20 and I2I. Thus when themotor II8 operates the compressor II1 refrigeration fluid is forced through the pipe I20 and is directed by I1 thence through the inlet pipe 21 into the radiator 26 and then therefrom through the outlet pipe 28 into the return pipe I8. from which the valve 20 directs it into the return pipe I2I.

From the foregoing it will be apparent that when the blower 4I is operating air passing from the chamber 30 past the radiator 26 will be either heated or cooled depending on whether the heater I4 or the refrigerating device 42 is operating.

By actuating the operating handle 34 of the shutter device 32 the fins 33 thereof may be positioned to direct the air upward, downward or horizontally to suit the desireof the operator. By actuating the valve II3, the volume of air enbe controlled and by actuating the control valve 29 the degree of radiation from theradiator 26 may be controlled.

When the'valves 52, 51 and 65 of the air conditioning device 40 are closed and the valve 49 is open as shown in Fig. 1 the air passing through the device 40 after being cleaned in the cleaning chamber 44 passes through the humidifying chamber where moisture is mixed with the air before it passes therefrom through the exit passageway 60 into the passageway 55.

When thevalve 51 is closed and the valve 48 4 and 65 are open and the valve 52 is actuated to restrict passage through the the humidifying chamber through the device 40 after cleaning chamber 44 passageway 43 into 45, the air passing being cleaned in the passes through the passage- ;way 41 into and through the de-humidifying ing device is controlled by a humidity operated device "I. Y

As shown in Fig. 6 the thermo device I48 includes a rheostat winding I42 which is engaged The contact bar I3I the valve I9 into the feed pipe contact track I6 I.

by the free end of a thermo-responsive arm I43. Adjacent the arm I43 I provide a contact arm I44 whichis pivotally mounted adjacent one end as at I45 and adjacent the opposite end includes an arcuate portion I 46 which is engaged by the thermo-responsive arm I43. The device I40 further includes a control switch indicated generally at I 41 which includes pivoted contact bars I 48, I48 and I50. The contact I48 is adapted in one position to engage a contact I5I, the contact bar I49 is adapted in one position to engage a contact I52, and in another position to engage a contact I 53; and the contact arm I50 is adapted in one position to engage a contact I54. The contact bars I48, I49 and I50 are suitably connected by a bar I so that when the contact bar I 48 engages its associated contact I5I the contact bar I49 will engage its associated contact I 52 and be out 01' engagement with the contact I53 and the contact bar I50 will be out of engagement with its associated contact I54. When the contact bar engages its associated contact I54 the contact bar I48 swings out of engagement with its assoportions I51 and I 58. The contact bar I 61 in one extreme position engages a contact I58 and in the other extreme position engages a contact I60 while in an intermediate position it engages a In1a1l positions of the arm I 56 the contact arm I58 engages a contact track I62. When the arm I56 is in an intermediate position the contact bar I58 is adapted to bridge between the contact track I62 and a contact I63, and when the contact bar I 51 bridges between the contact I68 and the contact track I H the contact arm I58 bridges between the contact track I62 and a contact I63.

The device I further. includes a pivoted switch arm I64 which in one position engages a' .is connected by a wire "I to the wire I69. The

contact I52is connected by a wire I1 I to the wire "9.. The contact arm I48 is connected by a wire I12 to one terminal of the heater motor I6 while the other terminal thereof is connected by a wire I13 to the other side of a source of electricity shown as line wire I14. Thus when the contact bar I48 engages the contact I5l current flows from the line wire I68 through the wire I61 to the contact arm I44 and thence through the therrno-responsivearm I43 to the rheostat coll I42 and through the'wire I68 to the contact I 5I. Then through the contact bar I48 and the wire I12 to the motor I6 and returns to the line wire I14 through the wire I13 therebyoperatin'g the motor I6. As the temperature rises the thermoresponsive arm I43 moves in the direction of the arrow thereby decreasing the supply of current to the motor I6 whereupon the motor operates at a decreased speed and when the thermo-re the circuit to the motor I6 is broken whereupon the motor ceases to operate; As the temperature .motor I59 independent of the position 01' the drops the thermo-responsive arm I45 moves into engagement with the portion I45 of the contact arm I 44 whereupon a circuit is again establishedto the motor I5.

The contact-bar I4! is connected by a wire I15 I 'to one terminal the blower motor I55 while the other terminal thereof is connected by a wire I15 to the wire I15. Thus when the contact bar I45 engages the contact I52 current flows from the rheostat coil I42 through the wire "I to the con .tact I52 thence through the contact bar I45 and elements of'th'e-device I45. A switch. I11 is opened to prevent feedback to the motor I through the switch I49.

' To operate the refrigerating unit, the switch I41 is operated to swing the contact bar I45out of engagement with the contact I5I, the contact bar I45 swings out of engagement'with the conto the contacts I54and I55.

tact I52 ariddnto engagement. with the contact I55 and thecontact bar I55 swings into engagement with the contact I54. The contact arm I is then swung to the other. side of its pivoted point as indicated by the dotted lines in which j position when the temperature rises the arm I45 moves into engagement with the arcuate portion I45 and when the temperature drops swings out of engagement with the portion I45.

When the device I45 is thus set current flows from the line wire I55 through the wire I51 to the contact arm I44 and thence through the contact arm I45t'o the rheostat coil I42; From the.

coil I42 the current flows through the wire I Fromthe contact- I54 the current flows through the contact bar I55 anda wire -I5I to one terminal of the refrigerator motor "5 and from the other terminal thereof it returns tothe line wire "4- through wires I52 and -I15. At the same time current flows from the contact' I55 through the contact bar I45 and the wire I15t0 the blower motor'IIIS and returns therefrom to the line wire I14 through the wire I15. One end of the solenoid coil -I25 is connected by a wire I55 to the line wire I14 while i the opposite end is connected by a. wire I54 to the contact track l55; The associated contact track-l55 connected'by a wire I55 to the wire I12. Thus when the contact bar- I 52 bri es the contact traclis I55 and I55 andcurreut is dirooted to the heater motor I5 through the wire I12 and current flows through the wire I55 to the contact'track I55 thencethrough the contact bar I52 to the contact track I55 and then through I the wire I54 to the solenoid coil I25 through the coil and returns to the line wire I14 through the wire I55 thereby energizing the solenoid coil I25. when the coil I25 is thus energizedit attracts the core portion I55 of the bar I25 thereto thereby the operating arms of the valves I5 "and 25 to a position to allow the pipes I1 and the springs I25. associated therewith pull the armsandbarinthedirectioninwhichtheyare- I52 moves out of engagement with the contact tracks I55 and I55 and the contact her I5I moves into engagement with the contact tracks I55 and I54.

One end oi the solenoid coil I21 is connected by a wire I55 to the line wire I14 and the opposite end of the coil is connected by'a wire I51 to the contact track I54 while the companion contact track I55 is connected by a wire I55 to the wire I. when the switch I41 is accurrent flows to the refrigerator motor II5 through the wire I5I current also flows through the wire I55 to the contact track I55 then through the contact bar "I to 'theconta'ct, track I54-and thence through-the wire I51 to thecoil I21, through the coil and returns to the line wire I14 through the wire I55 thereby energizing the solenoidi coil I21. When the solenoid coil I21 is thus energized itattracts thecore portion I25 of the bar I25 thereto thus moving thebar I25 which swings the operating arms of the valves I5 and 25"toa position to restrict communication between thepipes I1 and I5 and the heater and allows communication between the pipes I1 and I5 and the refrigerator pipes I25 and I2I. When the valve arms s'wing past center the springs I25 continue to move the bar I25 which moves the contact bar I5I out of engagement with the-contact tracks I55 and I54 and moves the contact bar I52 into engagement with the contact tra cks I55 and I55.- g

One end of the' solenoid coil 15 of the air conditioning device is connected by a wire I55 to the line wire "4- and the opposite end of the coil is connected by-awire l5I to the contact track 15. The companion" contact track 11 is connected by a wire I52 to the contact I55-oi the device-I4I and by a wire I55 to the contact I5I, and by-a wire I55 to 'the contact I55. The contact track I5I' is connected by a wire I54 to the contact I55 and the'contact bar I54 is connected by a wireI55 to the line wire I55. One end of the solenoid coil" is connected by a wire I55 to the wire I55 and the opposite end of the coil is l0. tuated to operate .the refrigerating device and I through the wire I55. the contact bar I54; v

the contact I55 and-"the wire I54 to the contact track-III. r

when the air is dry the humidity operated device-Ill swings the operating arm I55thercoi upward to 'aposition wherein the contact bar section I51 thereof bridges the contact track I5I' and the contact I55. when the air is humidified to a predetermined degree the device I4I swings the arm I 55 thereof downward to an intermediate position wherein the contact but section I51 thereof bridges between the contact track- IN and the contact I5I and the contactbar section I55 bridges between'the contact I55 and the contact track I52. When the air is exceedingly humid the device I moves the operatin'af arm I55 thereof to a lowered position wherein the contact bar section I51 thereof bridges between the contact track I5I and the contact I55 and the contact bar I55 bridges between the con-- tact track I52 and the contact I55.

- When the switch bar I54 engages the contact "moving. Aathebai' m ismoved the contact bar m and the contact on section In of th obcrating arm I56 bridges between the contact track WI and the contact I59 current is directed through the wire I 92, the contact track 11, contact bar 14, the contact track 18 and the wire I9I to the solenoid coil 10 and thence through the wire I98 to the line wire I14 thereby energizing the coil 10. When the solenoid coil 10 is thus energized it attracts the core portion 12 of the bar 66 thereto thereby moving the bar 68 which in turn swings the operating arms 5| and 59 to a position wherein the valve 49 allows communication between the cleaning chamber 44 and the passageway 41. When the valves 49 and 51 are in this position the air is directed into the passageway 41 whence it passes either into the humidifying chamber 45 or the dehumidifying chamber 46 depending on the position of the valve 52.

When it is desired to direct the air directly from the cleaning chamber 44 into the passageway 55 the switch bar I64 is moved into engagement with the contact I66 whereupon current is directed to the coil 69 through the wire I 95, switch bar I64, contact I66, wire I98, contact track 15, contact bar 13 and the wire I91 and from the coil 69- to the line wire I14 through the wires I96 and I96; thereby energizing the coil 69. When the solenoid coil 69 is thus energized it attracts the core portion 1| of the bar 68 thereto thereby moving the bar 68 which in turn swings the operating arms 5| and 59 to a position wherein the valve 49 restricts passage. between the cleaning chamber 44 and the passageway 41 and wherein the valve 51 allows free passage between the cleaning chamber 44 and the passageway 55.

One end of the solenoid coil 9| is connected by a wire 280 to the wire I82 and the other end of the coil -9| is connected by a wire 20| to the contact track 91 while the companion contact' track 96 is connected by a wire 202 to the contact I63, One end of the solenoid coil 92 is connected by a. wire 203 to the wire 200 whilethe opposite end of the coil 92 is connected by a wire 204 to the contact track 99. The companion contact track 96 is connected by a wire 205 to a contact 206 which is engaged by the contact bar I58 the arm I56 when the arm I56 is in a raised position. When the contact bar I58 bridges between the contact track I62 and the contact 206 current is directed from the contact track I62 to the solenoid'cbil 92 through the contact 206, the wire 205,- cozitact track 98, contact bar 95, contact track 99 and the wire 204 and returns'to the line wire |14 through the wire 203 thereby engizing the solenoid coil 92. When the coil 92 is thus energized it attracts the core portion 94 of the bar 90 thereto thereby moving the bar 90 which in turn swings the shutter operating arm 63 toa position wherein the shutter device 6| partly restricts the passage of air from the humidifying chamber 45 thru the exit 60 into the passageway 55. When the passage of air is thus restricted the airibecomes more saturated with we of the device In portionw|58thereof bridges between the contact "track 'I62 and-the contact I63 current is directed to the solenoid coil 9lfrom the contact track I62 through-thei-rcontact 'lfl, the wire 202, contact track 96; contact bar 94, contact track 91 and the wireI:20I and -returns to theline wire I14 through the wire' 200;.thereby:'energizing the solenoid coil When the solenoid coil 92 is thus energized it attracts the core portion 93 of the bar 90 thereto thereby moving the bar 90 which in turn swings the shutter operating arm 63 to a position wherein the shutter device 6| allows free passage through the exit passageway 60.

One end of the solenoid coil 80 is connected by a wire 208 to ,the wire I16 and the opposite end of the coil 89 is connected by a wire 209 to the contact track 81 while the companion contact track 86 is connected by a wire 2I0 to the wire HM, and a wire 2I0' bridges between the wires 202 and the wire 2I0. One end of the solenoid coil 8| is connected by a wire 2I2 to the wire 208 and the other end of the coil is connected by a wire 2|3 t0 the contact track 89 while the com.- panion contact track 88 is connected by a wire 2I4 to the contact I60.

When the current is directed through the wire I I9I to the solenoid coil 10 current is also directed to the solenoid coil 80 through the wire 2|0, the contact track 96, contact bar 84, contact track 81 and the wire 209 and returns to the line wire I14 through the wire 208 thereby energizing the coil 80. When the coil 80 is thus energized it attracts the core portion 82 of the bar 19 thereto thereby moving the bar 19 which in turn swings the control arms 54 and 61 to a position wherein the valve 52 allows free passage through the entrance passageway 48 from the cleaning chamber 44 to the humidifying chamber 45 and restricts passage through the passageway 41 to the dehumidifying chamber 46 and wherein the valve 65 restricts passage through the exit passageway 64 of the de-humidifying chamber 46. Furthermore, when current is directed through the wire 202 to the solenoid coil 9| current is also directed through the wire 2| 0 to the solenoid coil 80. Thus each time the coil 9| is energized to open the shutter device 6| the coil 80 is energized to close the valves 52 and 65. When'the operating arm I 56 of the device moves to its lowermost position and the contact bar portion I51 thereof bridges between the contact track I6I' and the- I contact I60 current is directed to the solenoid thereto and moves the'bar 19 which in tum swings the operating arms 54 and 61 to positions wherein the valve 52 allows free passage through the passageway from the cleaning chamber 44 to the de-humidifying chamber 46 and restricts passage through the entrance passageway 48 of the humidifying chamber 45 and wherein the valve allows free passage through the exit passageway 64 of the de-humidifying chamber 46. When the contact bar I51 bridges between the contact track |6| and the contact I the contact bar. I58 bridges between the contact track I62 (w and the contact I63 the wire I93 and the wire 65 I92 to the contact track 11 which will energize the solenoid coil 10 should the valve 49 be in a closed position and the valve 51 in an open position. k

From the foregoing it will be apparent, that when the switch 41 is set to operate the heater I4, the1blower 4| will, also operate and as the temperature rises theaction of both the heater and theublower will slow downruntil the temperature rises av predetermined degree whereupon the operation of the heater and the blower will cease. i

When the switch I4! is set to operate the refrigeration deviceffl the blower 4! will also operate and as the temperature drops the action of both the refrigeration device and the blower will slow down until the temperature falls below a predetermined degree whereupon the operation of the refrigeration device and the blower will cease.

It will also be seen that when the switch bar I44 engages the contact I65 and the air is dry'j the air conditioning device will be automatieally operated to humidify the air as it passes therethrough and; when the air contains a predetermined amount of moisture the shutter device 5| will be automatically operated to allow :freer I passage of air through the humidifying chamber 45 whereupon the air will collect less fnoisture as it passes through the chamber 45. When the air contains a predetermined excessive "amount of moisture the air conditioning device am will be automatically operated to de-Zhumidify the air .the heating plant is started.

' Fronfi the foregoing description it will be ap parentfihat I have provided a novel heating and cooling and air conditioning system for buildings which is simple in construction and highly eflicient in operation. i

CM l

Having thus described my invention, claim: 1. In an air conditioning apparatus, a heat exchange device, a heating means, a cooling means, means to selectively at will cause; said heat 7 exchange device to be heated or cooled by said heating or cooling means, means to pass air over said exchange device and means to change the condition of the air before it passes over the heat exchange device, said air conditioning means in- ,7 eluding. an air cleaner, an air humidifier, and W an air de-humidifier, hieans to control the flow of air through said air cleaner, means to control the flow of air through said humidifier, means to control the flow of air through said de-humidiher, a thermostatic means to control the opera-- tion of said heating means and said cooling 'humidifying rneans, electroma control the operation of said de-humidifying means, and means adjacent said}he at exchange means, electromagnetic means to control the operation of said air cleaning means, electromagnetic means to control the operation of said etic means to device to control the amount of ai passing thereover.

2. In an air conditioning apparatus, a lieat' exc ange device therein, means operable to heat said device, means to cool said device, air conditioning means remote from said device to change the state of avolume of air, said air conditioning means including an air cleaner, a humidifier and r a de humidiiier, means to control said air cleaner, means to control said humidifier, means to control said de-humidifler and means to direct means.

air from said last means through said exchange device into the building. 7 3. m an air conditioning apparatus, a heatexchangef device, a heating means,'a cooling means, means' to selectively at will cause said heat exchange device to be heated or cooled by said heating or cooling means, means to pass air over said exchange device and means to change the condition of: the air before it passes over the heat exchange device, said air conditioning means ineluding an air" cleaner, an air humidifier, and an air de-humidifier, means to contra} the flow of air through said air cleaner, means to control the flow of air through said humidifier, athermostatic means to control the foperation of said heating means and said cooling means, and means adjacent said heat exchange device to control the amount of air passing thereover.

4, In an air conditioning apparatus, a central heating means, a central cooling means, aplurality of heat exchange devices remote from said central means, returri circuit conduits selectively connecting said heatihg and cooling means and said heat exchange devices whereby on operation of the heating plantthe heat exchange devices will be heated and on operation of said cooling plant the heat exchange devices will be cooled, means to blow air over said heat exchange devices wherebs; the temperature of the air will be varied according to the thermal condition of the heatfexchange devices, air humidifying and dehumidifying means in the air stream to vary the moifiure content of the air, and means to control {the operation of the heating and cooling 5.'In an air conditioning apparatns, a central heating and cooling plant, a plurality' of heat'exchange devices remote from said central heating and cooling plant, return circuit conduits selectively connecting said central heating and cooling plant and each of said heat exchange devices whereby on'operation of the heating plant the heat exchange devices will he heated and on operation of said cooling plant the heat exchange devices will'ibe cooled, a chamber adjacent each of said heat exchange devices and communicating therewith, air blower apparatus at said heating cooling plant arid remote from said heat exchange devices, a jconduit connecting said air blower apparatus vifith each of said chambers whereby when said air blower apparatus'is operated air will be blown through said chambers and over heat exchange devices whereby the temperature of the air will be varied according to trol the operation of the heating and e c i In an air conditioning apparatus, a heating, a cooling plant, a'plurality of heat exchange devices remote from said ,centralhatins' and cooling plant, a feed conduit connecting said 65 heating plant and said cooling plant to the head exchange devices, a return \conduit connecting said heat exchange devices to the lheating plant and the cooling plant, selective central means whereby on operation, of the heating plantthe 70 heat exchange devices wilf be heated and on operation of said cooling plant the heat exchange devices will be cooled, a chamber adjacent of said heat exchange .device sl and communicating therewith, air blower apparatus at said heating 75 condition of the heat exchange de- 55 and cooling plant and remote from said heat exchange devices, a conduit connecting said air blower apparatus with each of said chambers whereby when said air blower apparatus is operated air will be blown through said chambers and over said heat exchange devices whereby the temperature of the air will be varied according to the thermal condition of the heat exchange devices, air humidifying and de-humidifying means adjacent said blower apparatus and communicating with said blower apparatus to vary the moisture content of the air, and means to control the operation of the heating and cooling plant.

7. In an air conditioning apparatus, a central heating means, a central cooling means, a plurality of heat exchange devices remote from said central means, return circuit conduits selectively connecting said heating and cooling means and said heat exchange devices whereby on operation of the heating plant the heat exchange devices will be heated and on operation 01' the cooling plant the heat exchange devices will be cooled, a single means remote from said heat exchange devices to blow air over all of said heat exchange devices when the latter are heated to vary the temperature of the air according to the thermal condition of the heat exchange devices, said air blowing means being also effective to blow air over the heat exchange devices when the latter are cooled to thereby both cool and de-humidify the air, an air supply conduit, an air cleaner in communication with said air supply conduit, 9. humidifier, valved means affording communication between the air cleaner and the humidifier, valve means afiording communication between the humidifier and the blowing means and valved means affording direct communication between the air cleaner and the blowing means. and means to control the operation of the heating and cooling means.

MARTIN G. TORSON. 

